tedium tedisome • tee · · · Info · Definitions · Synonyms · Characters · · tedium · · Text Latin · · Script 6 · · Length Definitions · · · (noun) the feeling of being bored by something tedious. Synonyms: boredom, ennui. · · Noun Definition 1 (noun) dullness owing to length or slowness. Synonyms: tediousness, tiresomeness. · · Noun Definition 2 Synonyms · · · boredom · · Synonym 1 ennui · · Synonym 2 tediousness · · Synonym 3 tiresomeness · · Synonym 4 Characters · · d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D t latin small letter t U+0074 u latin small letter u U+0075